Unit 4 Vocab-Extra Credit

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Across
  1. 1. a crater with central peaks and ejecta thrown out in long rays
  2. 3. the pulverized surface material of the Moon; also known as lunar soil
  3. 11. a crater from a large impact that released magma from beneath the surface
  4. 12. the shape of the Moon just after and just before the new Moon phase
  5. 14. the vertical distance or height above sea level
  6. 15. light-colored areas on the moon with lots of rough mountains and craters
  7. 17. the angular distance north or south from Earth’s equator
  8. 20. the phase of the Moon that occurs when the Moon is opposite the Sun as seen from Earth
  9. 22. spinning on an axis
  10. 23. a Moon shape that is larger than a first or third quarter Moon but smaller than a full Moon
  11. 24. the collection of objects, distances, and directions used to tell the location of an object
  12. 26. the phase that occurs halfway between the new and full Moon
  13. 28. small, bowl-shaped craters with a fairly uniform blanket of ejecta distributed around the rim
  14. 30. the angle at which light passes through the atmosphere; measured from Earth’s surface
  15. 32. the distance measured on Earth's surface east or west of the prime meridian
  16. 35. an imaginary axle that a planet spins on
  17. 36. the imaginary line where the sky meets Earth or the ocean
  18. 37. when the Moon passes exactly between Earth and the Sun
  19. 39. round structures of various sizes with various details created by an impact
  20. 41. the action of one object hitting another; to strike an object with force
  21. 42. the straight, unimpeded path taken by light from an object to an eye
Down
  1. 2. the phase that occurs halfway between the full and new Moon
  2. 4. a piece of a meteoroid that hits the ground
  3. 5. when Earth is exactly between the Moon and the Sun, and the Moon passes through Earth’s
  4. 6. a chunk of ice, dust, and rock material a few kilometers in size
  5. 7. the phase of the Moon that occurs when the Moon is in the direction of the Sun from Earth
  6. 8. the reference star pointed to by Earth’s North Pole
  7. 9. the position from which a visual observation is made
  8. 10. traveling around an object
  9. 13. a day of the year when Earth’s North Pole is leaning either toward the Sun or away from the Sun
  10. 16. a small or medium-size piece of rock or metal from space
  11. 18. the material displaced from the land when a crater is formed
  12. 19. the circle around Earth or a celestial object that is everywhere the same distance from the poles
  13. 21. the path and length of time one object takes to travel around another object
  14. 25. white lines that extend in all directions from some craters
  15. 27. when the moon is getting smaller
  16. 29. a day of the year when the Sun’s rays shine straight down on the equator
  17. 31. the way a light beam covers a larger area when it hits a surface at an angle
  18. 33. a structure on the Moon's surface that looks like a canyon or streambed
  19. 34. when the moon is getting bigger
  20. 38. the dark large areas that are fairly smooth on the surface of the moon
  21. 40. the distance above Earth’s surface